Vibrating distributing-roller for printing-presses.



W. H. GOLDING. VIBEATING DISTRIBUTING ROLLER FOR PBINTING PEESSES.

APPLIOATION FILED APR. 8,1913.

Patented Jan. 5, 1915.

2 SHEETSSH EET 1.

y W. H. GOLDING.

VIBRAT-ING DISTRIBUTING ROLLEB FOR PRINTING PRESSES.

APPLICATION FILED APR; 8, 1913.

Patented Jan. 5,1915.

' 2 SHEETSS HEET 2.

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WILLIAM H. GOLDING, OF FRANKLIN, MASSACHUSETTS.

VIBRATING DISTRIBUTING-ROLLER FOR PRINTING-PR-ESSES.

Application filed. April 8, 1913.

To all whom it may concern.

Be it known that I, \VILLIAM H. GOLD ING, a citizen of the United States, residing in the county of Norfolk and State of Massachusetts, have lnvented cer-' at Franklin,

tain new and useful Improvements in Vibrating Distributing-Rollers for Printing- Presses, of which the following is a specification, reference being had therein to the accompanying drawing.

, The invention relates to certain new and useful improvements in vibrating distributing rollers for printing presses; the object being to provide means for overcoming the difliculties now existing when rollers of this character are in use whereby the sticking of the roller after it has traversed the inking rollers is prevented, and a distributing roller is formed which is positive in action.

Another object of the invention is to provide novel means for mounting the distributing rolls whereby the roller will be held in contact with one of the inking rolls to insure the rotation thereof so as to distribute the ink upon the inking rolls.

Another object of the invention is to provide novel means for holding the dis-- tributing roller-carrying shaft from turning until the roller has reached the limit of movement, whereby the shaft will be rotated on the final movement of said roll and on the initial movement in a reverse direction.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawingsFigure 1, is a detail side elevation of a portion of a press, showing the application of my improved construction of distributing roller thereto; Fig. 2, is a longitudinal section through the distributing roller detached; Fig. 3, is a top plan view of a distributing roller showing the same in position upon the inking rollers; Fig. 1, is an elevation showing the shaft bearings in position upon the ink ing roller shafts; Fig. 5, is a detail top plan showing a slightly modified form of distributing roller; Fig. 6, is an end elevation of the same; Fig. 7, is a perspective view of the shaft-carrying brackets detached; Fig. 8, is a perspective of the clutch members detached; and Fig. 9 is a perspective Specification of Letters Patent.

parts in the several disk; 3 the inking Patented J an. 5, 1915. Serial No. 759,766.

iolding the shaft from rotating.

Like numerals of reference refer to like figures of the drawings.

In the drawings, 1 indicates a portion of the frame of a printing press; 2 the inking roller frame which is provided with a plurality of spring-actuated rods 4. arranged in pairs and having hooked upper ends 5 carrying inking rollers 6 arranged in pairs as shown, and held into contact with the inking disk 2 by the action of the springs of the rods 4:.

The inking rolls 6 are provided with shafts which are embraced by the hooked ends 5 of the rods 4 in such a manner that the shafts are free to rotate therein when the inking rollers are moved over the ink ing disk.

Pivotally mounted on each end of the shaft of the lower roller 6 of each pair, is a plate 8 provided with slots 9 through which extend pins 10 carried by a forked plate 11 embracing the shaft 7 of the upper rollers; said plate being provided with a bearing 12 projecting inwardly as shown, and these plates form movable bearing members which are free to move in respect to each other for the purpose later described.

Mounted in the bearings 12 of the forked plate 11 in a plane above the plane of the shafts 7 of the inking roller 6, is a shaft 13 having a threaded portion 14% at one end on which is revolubly mounted a hollow dis tributing roller 15 a bearing sleeve 16 at one end snugly fitting the shaft 13 and at its opposite end with an internally threaded sleeve 17 working on the threaded portion 14 of the shaft 13, as clearly shown in Fig. 2, and these sleeves are rigidly connected to the roller shell 15.

Each end of the roller is provided with oppositely disposed camshaped projections forming clutch faces 18 and 19 adapted to co-act with the clutch faces 20 and 21 of collars 22 and 23 fixed on the shaft 13 and the opposite faces of said collars are provided with transverse grooves 24 having beveled walls, as clearly shown, into which extend the transversely ribbed slidably mounted collars 25 and 26, normally held in engagement with the collars 22 and 23 by coil springs 27 to which the collars 25 and which is provided with 26 are connected forming frictional means for preventingthe shaft 13 from rotating with the distributingroll 15.

The bearings for the shaft 18 insure the distributing roller of being held positivelyin engagement or contact with one of the inking rolls 6 so that the same will rotate therewith as the rollers are moved over the inking disk, and it will be seen that as the distributing roll rotates in one direction, it will move sidewise so as to distribute the ink over the inking rollers.

This operation is alternately repeated until the distributing roll gradually works so far to one side that the clutch face thereof is brought into engagement with one of the clutch faces of the collars carried by the shaft so as to lock the roller to the shaft, whereby the rotary movement thereof, will cause the slidably mounted collar on the shaft to be forced out of the groove against the action of the spring and the shaft will rotate slightly in the final movement of the distributing roll.

On the initial reverse movement of the distributing roll, the shaft will rotate with the roll until the groove of the collar is brought into alinement with the rib of the fixed collar and by the action of the spring, the rib is forced into the groove so as to exert a frictional break upon the shaft which causes the shaft to cease to rotate and the sudden stopping of the shaft causes the distributing roll to free itself by the rotation thereof through the medium of the inking rollers and the same continues to rotate and to move sidewise upon the threads of the shaft.

It will be seen by this construction, that when the distributing roll 15 is brought into engagement with either of the clutch collars 22 or 23, it becomes locked to the shaft so as to cause the shaft to rotate, whereupon by the movement of the roller in a reverse direction, the shaft rotates until it is frictionally held from rotating by the frictional interlocking means, which causes the roller to rotate independent of the shaft, thereby preventing the roller from sticking at either end of the shaft upon which it is mounted.

The collars 25 and 26 carried by the springs 27 provide frictional means for preventing the shaft 13 from rotating until the distributing roll has worked to one side and becomes, locked to the shaft.

In the modification shown in Figs. 5, 6 and 9, the bearing plates 28 and 29 carried by the shafts of the inking rollers are connected together in a similar manner to that disclosed in the preferred form of the invention, with the exception that the plate 29 carries a slidably mounted bearing 30 in which the shaft 31 of the inking roller is mounted, which increases the bearing surface for the shaft. The bearing plate 29 is provided with an inwardly projecting bearing member 32 having an opening not shown, through which extends a plunger 33 over which is arranged a spring 84 held in position by a screw 35; said plunger being provided with a rounded end adapted to coact with a notch 36 formed in a distributing roller shaft 3'7, the bottom of said notch 36 being formed upon. curved lines. The construction of distributing roller is identical with the construction of roller illustrated in Figs. 1 to 4; and the shaft 37 is provided with a clutch member 38 which co-acts with the clutch face of the roller so as tolock the roller to the shaft. It will be seen that the coil spring employed for holding the slidably mounted collars 25 and 26 have been dispensed with and a spring plunger has been substituted for preventing the distributing roller shaft from rotating under ordinary circumstances. By this construction, I have provided frictionalinterlocking means for holding the distributing roller shaft from rotating until the distributing roller has traversed the inking rollers which only happens after the distributing roller has been in use some time, and under certain circumstances. It will also be seen that I have provided means for allowing the distributing roller shaft to rotate with the distributing roller when the clutch faces of the respective parts are brought into contact with each other whereby the distributing roller when moved in a reverse direction after it has been brought into engagement with either of the clutch members carried by the shaft will be automatically freed and allowed to rotate upon the shaft.

From the foregoing description, it will be seen that I have provided a vibrating distributing roller which is mounted to oscillate between a pair of inking rollers in such a manner that it will be positively held in contact with one of the inking rollers to insure the rotation thereof so as to cause the distributing roller to reciprocate.

It will also be seen that I have provided interlocking means for frictionally iolding the distributing roller shaft from rotating until the distributing roller is locked to the distributing roller shaft so as to cause the same to rotate on the final movement and initial reverse movement of the distributing roller, whereby the CllffiCUltlGS now existing in distributing rollers, are prevented.

In the specification, I have referred to the inking roller frame including the inking rolls and distributing roller passing over the inking disk, but it is of course understood that in this class of platen press to which the distributing roller is adapted to be used, the inking rolls travel over the printing surface as well as the inking surface of the press and that in their movement in one direction, the rolls rotate in one direction, and in their movement in a reverse direction, they are rotated in a reverse direction and cause the distributing roller to rotate first in one direction and then in the other, whereby the roller vibrates or reciprocates in respect to the inking rolls so as to distribute the ink evenly over the same, whereby an even impression is obtained. In the movement of the distributing roller in respect to the inking rolls, it sometimes happens that the movement in both directions is not the same, whereby the distributing roller will work so far to one side that it becomes locked, and the main object of this invention is to provide means for preventing said roller from becoming locked when it has reached either of its extreme positions.

While I have shown and described specific means for accomplishing this result, it is of course understood that various other forms may be used to provide means for holding the distributing roller shaft from rotating and for locking the roller thereto, to cause the shaft to rotate alternately at the limit of movement of the distributing roller and I do not wish to limit myself to any exact construction for obtaining this result.

I claim:

1. An ink distributing roller for printing presses, comprising a threaded supporting shaft, a tubular internally threaded roller mounted upon said shaft, said roller being provided with clutch faces at its ends, a collar fixed on said shaft adjacent each end thereof having a clutch face adapted to cooperate with the, clutch face of said roller, said collars being provided with transverse grooves upon their opposite faces, collars slidably mounted upon said shafts provided with transverse ribs cooperating with the grooves of the fixed collars, and coil springs surrounding said shafts for holding said col lars in contact.

2. In a printing press, the combination with spaced inking rolls and their support ing shafts, of plates pivotally mounted upon the ends of the shaft of one roll, plates slidably mounted upon the ends of the shaft of the other roll, a sliding connection be tween said plates, bearing members carried by one of said plates, a shaft mounted in said bearing members, and an ink distributing roller mounted upon said shaft.

3. An inking distributing roller for printing presses comprising a shaft, a roller mounted upon said shaft to move longitudinally and rotate thereon, means for preventing said shaft from rotating, and means for locking said roller to said shaft for causing said shaft to rotate on the final and initial reverse movement of said roller.

4. An inking apparatus for printing presses comprising inking rolls arranged in pairs upon parallel shafts, bearing members ed portion mounted upon the shafts of said rolls and pivotally and slidably connected together, a shaft mounted in said bearing members having a threaded portion, a distributing roller mounted upon said shaft having a meshing threaded portion, interlocking frictional means for preventing said shaft from rotating, and interlocking means between said shaft and roller for overcoming said interlocking frictional means to cause said shaft to rotate on the final and initial movement of said roller.

5. An inking apparatus for printing presses, comprising inking rolls arranged in pairs upon parallel shafts, bearing members mounted upon said shafts andpivotally connected together, an ink distributing roller-- shaft mounted in said bearing members, a distributing roller mounted upon said shaft, means for causing said rollers to move longitudinally in respect to said rolls, frictional means for preventing said distributing roller-shaft from rotating, and means for interlocking said distributing roller to its shaft.

6. In a printing press, the combination with spaced inking rolls and their supporting shafts, of plates pivotally mounted upon the ends of the shafts of one roll, plates slidably mounted upon the ends of the shaft of the other roll, a sliding connection between said plates, bearing members carried by one of said plates, a shaft mounted in said bearing members, an ink distributing roller mounted upon said shaft to rotate and move longitudinally upon said shaft, frictional means for preventing said shaft from rotating, and co-acting clutch members carried by the roller and shaft for locking said roller to said shaft to cause said shaft to rotate when said roller has reached its limit of movement in either direction.

7. An ink distributing roller for printing presses comprising a shaft having a thread at one end, a hollow distributing roller arranged upon said shaft having a bearing sleeve at one end and a threaded sleeve meshing with the threaded portion of said shaft, said roller being provided with clutch faces at its ends, clutch mem bers fixed to said shaft adapted to co-act with the clutch faces of said roller alternately, frictional interlocking means for preventing said shaft from rotating, said means yielding when the clutch faces of said roller are locked with the clutch members of said shaft to cause said shaft to rotate on the final movement and the initial reverse movement of said roller.

8. An ink distributing roller for printing presses comprising a supporting shaft, means for preventing said shaft from rotating, a roller mounted on said shaft, means for causing said roller to move longitudinally upon its shaft, and means for locking said roller to said shaft to overcome said preventing means at the limit of move ment of said roller to cause said shaft to rotate on the final and initial reverse movement of said roller.

9. An ink distributing roller having a supporting shaft, spring-actuated frictional means for preventing the rotation of said shaft, a distributing roller mounted upon said shaft to rotate and move longitudinally thereon, and means for locking said roller to said shaft to overcome said frictional means to cause said shaft to rotate on the final and initial reverse movement of said roller.

10. In a printing press, the combination With an inking apparatus including a frame carrying spaced inking rolls mounted upon five cents each, by addressing the parallel shafts, plates mounted upon said shafts having a pivoted and sliding connection, one of said plates being provided With bearings, a distributing roller shaft mounted in said bearings, means for preventing said shaft from rotating, a distributing roller mounted upon said shaft to rotate and move longitudinally thereon, and means for locking said roller to said shaft after the same has reached the limit of movement in either direction to cause said shaft to rotate.

In testimony whereof I afiiX my signature in presence of two Witnesses.

WVILLIAM H. GOLDING. Witnesses:

CLYDE A. HAYWARD, W. H. GOLDING, Jr.

Commissioner of Patents.

Washington, D. C. 

